Changelog

Changes that can change what your calls make or cost, newest first.

2026-10-29: save images, group notes, ideas with reasons

• New tool save_images: keep up to 20 of the user's images in their Media library and, optionally, an existing or new collection, in one call. Upload each file with create_upload first.
• generate_slideshow, estimate_cost and suggest_topics take an optional groupId. Wavegrain then writes with that account group's notes and words to avoid on top of the brand voice, and plans the slideshow for that group.
• suggest_topics also returns ideas, each with a number, format and a one-line reason, and performance, a line on the brand's measured posts. topics is unchanged.
• list_accounts shows each group's notes and avoid.

2026-10-29: pricing needs only read, links on every slideshow

• estimate_cost now needs the read permission instead of generate, because it spends nothing. A key without spending can tell its user what a slideshow would cost.
• list_slideshows and get_slideshow give each slideshow a link that opens it in Wavegrain. Give your user that link; do not build one.
• get_slideshow links the inline slide viewer for normal slideshows too, and sends each slide as a small JPEG in the result's _meta (wavegrain/slidePreviews) for it. Hosts that show MCP Apps draw the slides inline; other clients ignore _meta and keep the one preview image.

2026-10-28: generate_slideshow answers at once, photos only, topic ideas

generate_slideshow now answers within a second with a jobId and status: "writing", instead of waiting for the script. Writing a script can take one to two minutes, longer than many MCP hosts wait for a tool.

• Call get_generation_status with the jobId about every 20 seconds. It answers writing, making_images, ready or failed, with the slideshowId once the script is written and the credits it cost.
• generate_slideshow no longer returns slideshowId, slideCount or creditsCharged; get_generation_status does.
• photosOnly: true on generate_slideshow and estimate_cost makes no AI image at all, so only the script costs credits. A slide no photo fits stays empty; get_generation_status names it in emptySlides, and search_images with set_slide_image fills it for free.
• New tool suggest_topics: topic ideas for a brand from its voice, its recent topics and proven hooks in the Inspiration library. It is free and shares the app's limit of 20 an hour per account.

2026-10-28: photos first for every slideshow

generate_slideshow now aims every slide at a photo. It uses your saved photos first, then runs an image search for each slide, then tries your brand's own website photos and a close fit. A slide gets an AI image only when none of these fits it.

• Photo slides cost no credits, so a slideshow usually costs less than before. estimate_cost and maxCredits still name the most a slideshow can cost, as if every slide were an AI image.
• A saved format keeps its own image setting.
• POST /api/generate with no image setting now means photos first too. Send libraryMixRatio: 0 (or libraryMix: false) for AI images only. libraryMix: true still means about half photos.